 We're obviously looking forward to hearing from the candidates individually, but we're also going to be waiting to see what their dynamic is like together. Because remember, this is the first time these two men have shared the same stage in four years. Of course, we'll be listening to what the candidates say, but we're also going to be paying attention to how they say it. For Trump, will he carry himself in a way that seems presidential, that can win over undecided voters?